Level 2
After buying 3 stickers at $7.50 each,
Adam has $12.60 left.
How much money does Adam have at first?
3 m
Level 1
Adam buys 4 identical stickers.
He pays the cashier $50 and
receives $4.20 change.
How much does each sticker cost?
3 m
Level 1
Adam buys 3 marbles and 2 pens for $10
Each marble costs $2.20.
How much is each pen?
3 m
Level 2
The mass of a box with 8 marbles is 12.35 kg.
Each marble weighs 1.2 kg.
  1. What is the mass of the empty box?
  2. What is the mass of 3 empty boxes?
3 m
Level 2
The mass of a box with 4 marbles is 3.77 kg.
The mass of the empty box is 2.57 kg.
  1. What is the mass of each marble?
  2. What is the mass of a box with 7 marbles?
3 m